S500 - Low Profile Battery Mount

I love S500 frame, due to its carbon-fiber reinforced arms. But I hate the flimsy battery mount. Sometimes it may pop-off on crash and it is hard to install back. Also its unreasonable lowering reduces acrobatic flying capabilities. Lower center of gravity turns into more stable flying but makes it harder to do flips. Also if I wanna have a spare battery mount to replace it in the field - its shape takes a lot of space in a bag.

So I came up with low-profile design, easily snaps on and will p